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Finding the Third Proportional to 15,371,220 and 33,021,780

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Solution

The third proportional to 15,371,220 and 33,021,780 is: 70,940,234.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,371,220 : 33,021,780 = 33,021,780 : x
  2. Step 2: Convert to fraction form
    15,371,220/33,021,780 = 33,021,780/x
  3. Step 3: Cross multiply
    15,371,220x = 33,021,780 × 33,021,780
  4. Step 4: Simplify right side
    15,371,220x = 1,090,437,954,368,400
  5. Step 5: Solve for x
    x = 1,090,437,954,368,400/15,371,220
  6. Step 6: Final answer
    x = 70,940,234.70

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.